The ban was instigated by Pakistan on Friday. At the time, the BBC News website's technology editor, Darren Waters, said that to block citizens from accessing YouTube it was believed Pakistan Telecom "hijacked" the web server address of the popular video site.

Those details were then passed on to the country's internet service providers so that anyone in Pakistan attempting to go to YouTube was instead re-directed to a different address.

But the details of the "hijack" were leaked out into the wider internet by Hong-Kong based provider PCCW and as a result YouTube was mistakenly blocked by other ISPs around the world.

The fact YouTube is back in action makes me revise my thoughts on the clash between governments and freedom of speech